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ASTM G62 – 07 Standard Test Methods for Holiday Detection in Pipeline Coatings

Most units can be reset to any predetermined sensitivity value in this manner. This method will determine the existence of any gross faults in thin-film pipeline coatings. This book also exists in the following packages This may be considered to be a nondestructive zstm because of the relatively low voltage.

The detector will ring if it passes any void, pinhole, or area of the coating thinner than the minimum allowable thickness. Active view current version of standard.

ASTM G (Reapproved )e1_百度文库

This method can be used to verify minimum coating thicknesses as well as voids in quality-control applications. The detector is now ready to operate by passing the damp sponge over the coated surface. Enter your personal account email address to request a password reset: Your comments are invited either for revision of this standard or for additional standards and should be awtm to ASTM International Headquarters.


Today, some 12, ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. This method will determine the existence of any gross faults in thin-? If the surface is in an environment where electrolytes might form on the surface, such as salt spray, wash the coated surface with f62 water and allow to dry before testing. The values given in parentheses are for information only.

This is used more commonly with Method B where voltage may vary from test to test atsm can also be used for veri?

ASTM G62 – 14

It should be noted, however, that this method will not detect thin spots in the coating. Register for a trial account. Copyright Compu-tecture, Inc. A ground wire connects the detector with the low-resistance metal surface. F62 edition approved Sept.

Historical Version s – view previous versions of standard Translated Version s: This method is considered destructive because the high voltages involved generally destroy the coating at thin spots. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk g6 infringement of such rights, are entirely their own responsibility. Link to Active This link will always route to the current Active version of the standard. No items in cart.


Because of the high voltages involved, do not touch the ground wire and the metal part of the electrode at the same time if the instrument is on. This method will not, however,? Therefore, they are useful for testing voids, pinholes and thin spots in the coating, but would not astj useful as a coating thickness quality control tool.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? It should be noted, however, that this method will not detect thin spots in the coating, xstm those as thin as 0.

Enter your account email address to request a password reset: Increase the holiday detector voltage over a known coating thickness and measure f62 voltage at the point where the detector will just begin to ring.

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Attach the ground wire lead with battery clamp and the wand to the terminals. Take care to keep the electrolyte at least This electrical contact will activate an alarm alerting the operator of the incidence of a holiday.